Deck-lamp lighting fixture



March 23 1926. 1,577,497

E. J. SCHROEDER DECK LAMP LIGHTING FIXTURE Filed March 8, 1923 2 Sheets-Sheet 1 I o u 27 VI 2, 25 K 3 24- a 1 3| 35 at; v 2a a as IN V ENTOR TTORNE Y March 23 1926. 1,577,497

E. J. SCHROEDER DECK LAMP LIGHTING FIXTURE Filed March 8, 1923 2 Sheets-Sheet 2 If: VEN TOR EH 4 AAMTTORNEY Patented Mar. 23', 1926.

ru -urea EDVTARD J". SGH ROEDER, OF-S'UMMIT, NEW' DECK-LAMP LIGHTING isFIX'I'URE.

Application fiIed IVL'arch- S, 1923. Serial 1l\To.;623,576.

To all whom it may concern:

Be it known that 1,. EDWARD J. SOHROEDER, a citizen of the United States, residing .at 281 Summit Avenue, Summit, in the county of Union and State of New Jersey, have invented certain newand useful Improvements in Deck-Lamp Lighting Fixtures, of which thefollowing is a specification.

v This invention relates toa deck lamp lighting fixturefand the novelty consists in the adaptation and arrangement ofthe parts, as will be more fully. hereinafter pointed out.

.There. arevarious typeset lighting fixtures having shade holders whichareadapted to hold the lighter form of shades in secure manner and in such a way thatthey will not be readily broken. But there is a large demand for. a fixture. embodying .a shade holder .adaptedto holdarlarger and heavier type. .or"shade, in asecure manner, and also inaway which will not cause breakage under unusual conditions prevailing on steamships and railroad trains.

Such adevicemustalso permit-the quick removal and replacement of the shade for cleaning or replacement in ,casebfbreak- .My device ineetsall of these require- IHGIlfiS, furnishinga shade holder. which firmly and securely grips ashade of a heavy type if desired and permitting the quick removal of the shade for cleaning and .restoring to position in the fixture again. The removal and replacing ofthe shade can only be accomplished, however, by first opening the locking device, thereby. eliminating the breakage ofshades by; pulling on them directly.

Referring tothe drawings: li igurefl is a vertical section olvmy device showing-the electrical connecting 1neans;-l.*igure 2 is a side elevation of the'spider;,Figure 3 is a top plan view otFig. 2; Figure 4 isa top plan view oi the finger clamping device; and Figure 5 is a side elevation of the same.

In the drawingslO is a spider adzunaed to be rigidly secured to the ceiling where the fixture is to be used by means of suitable screws 11 which pass through the borings 19 in the spider 10, and said spider 10 has a central internally threaded boring-12 adapt-- ed to receive an externally threadedsocket support member 18, towhich isinountedat its lower end-in the usual manner a socket Lt of usual construction. A locking nut 20 threaded over the .upper external threading to be screwed againstr the spider 10 after the, socket support-13 has. been screwed into position in. said spider 10,. in order. to. lock saidsochet support; member 18 into. position and .support 1 the same against horizontal pressure. .Electrical wires 15' aread-a 'ited .to passthrough thespiderlO and the socket supportlii. and be connected with the socket 14c in the usual well known manner.

A canopy16 is. adapted to be rigidly secured.torthespider 10 by imeans of suitable screws, 17engaging internally, threaded horings 18.0f the. spider 10. The canopy 16 has at .its lower edge an outturned flare 21, .which hasa beveledface 22 on. the inside thereofiwhich terminates in a secondbeveled face 22?,and there are. slots or. openings 23 through thesides ofsaid canopyal6. On the inside of said canopy 16 in its upper. portion isa 'flange24- having an internal threading25, intowhichacylindrical outer casing member 26 havingan external threading 27 in its-head. portion. is ,adapte/lto'be threaded. .Saidcylindrical casing 26 has slots 28 in-alignment.with slots 23 of the canopy 16 and hasian inturned:cylindrical rfiange 29 which has an internal threadingii'iO. -A n inner cylindrical. casing .31 has anouter threaded portion '32 at its. head which "is adaptedtosscrew into-the internal:threading 30 of. theoutercasing 26, and a nut 33; is adapted gito be screwed v[down onto said threaded portion 32 so; as tolock said iinner casing 31 and-said outer casing 26 securely together. The lower end or the inner casing 31; terminates in an outturned' flange 34., and-a cylindrical spring 35 isadapted to be; mounted i around. said casing- 31.

A; cylindricalzsliding inember 36 having an inturned flange .37 around its .lower edge isiadaptedato bev mounted between the cylindrical inner casin-gfil, andthe outer casing 26 .so. that the 'fiange 37 'will support the lower end of the spiralspring 35 so as to be :undeu the constant downward.-spr-i-ng tension of the spring 35, which at its upper end rests .on the-flange29 of the cylindrical member 26. Internally threaded cogllar members 38; are adapted to be.:screwed into the sliding cylindrical member :36 at 39 so that saidcollar members-38 register in. the

slots 2301 the canopy 16 and 28 oi: the casing 26. Airannular-wing4O is adapted to be mounted around thecanopylG by-means Of -SCIQWS -41 which .are adapted to thread into athe internal threading oi the collars S8,

thereby rigidly securing the annular ring 40 to the sliding cylindrical member 36. A cylindrical finger clamping member 42 having holes 43 therein is adapted to be rigidly secured by means of a cylindrical plate 48 and screws 44 through said holes 43 to the base of the inner casing 31. The spring clamp ing member 42 has individual finger memhere 45, the lower portions of said fingers 45 forming reverse curves so as to be adapted to grip the upper outturned flange 46 of a shade 47. A clamping pressure member 49 is adapted to be rigidly secured by means of screws 50 to the base of the sliding cy lindrical member 36, and said member 49 has pressure fingers 51 adapted to press against said fingers 45 of the clamping member 42. I

In assembling my fixture the spider will be first rigidly secured to the ceiling by means of screws 11, and the connecting wires will then be run through the socket support 13 which will be rigidly screwed into position in the internal boring 12, and the locking nut threaded onto the upper end of the socket $111))O1't 13 will then be turned up tightly in position against the spider 10. The socket 14 will then be connected to the wires 15 1n the usual manner and rigidly secured in position to the lower end of the socket support 13 in the well known manner. The outer casing 26 will then be screwed in position into the threaded portion of the flange 24 of the canopy 16. The spiral spring will then be placedin position around the cylindrical inner casing 31 with the sliding casing 36 in position over said spring 35 so said spring will rest on the inturned flange 37 of the casing 36, and the inner casing 31 will then be screwed into the upper end of said cylindrical outer casing 26 so that the inturned cylindrical flange 37 of the sliding member 36 will support and receive the pressure of the lower end of the spiral spring 35, and the upper end of spring 35 will bear on inturned cylindrical flange 29. The collar members 33 can then be screwed in position into the cylindrical sliding member 36 through the openings 23 in the canopy 16 and the openings 28 in the outer casing 26, and the an nular ring 40 can then be rigidly secured to the sliding member 36 by means of screws 41 adapted to be screwed into the collar members 38. The clamping pressure member 49 can then be rigidly secured to the base of the sliding member 36 by means of screws 50. The finger clamping member 42 can then be rigidly secured to the base of the inner casing 31 by means of screws 44. The canopy 16 together with the assembled parts therein can then be rigidly secured to the spider 10 by means of screws 17.

In operating my device the operator need only push up on the annular ring 40, thereby pushing up sliding casing 36 to which the ring 40 is rigidly secured and thereby compressing the spring 35. The clamping pressure member 49 which is secured to the base of said sliding casing 36 is thereby carried up with said casing 36, and as its lower edge passes above the beveled face 22 it slides onto the second beveled face 22 which being beveled upwardly and out wardly permits the pressure fingers 51 of the clan'iping pressure member 49 to expand and slide up on said beveled face 22. So it is apparent that the clamping pressure member 49 will ride up to release the pressure fingers 51 as soon as they pass from the beveled face 22 to the beveled face 22, and that on pushing down the pressure member 49 it will seek the lower full clamping position against the finger clamping member 42. Thus spring 35 is only a booster spring and can be dispensed with if desired. As the fingers 51 of the cylindrical clamping pressure member 49 are raised from their normal tension against the beveled face 22 of the outturned flare 21 to the beveled face 22*" of the canopy 16 the fingers of the cylindrical finger clamping member 42 are released, so that the globe 47 may be slipped into position or removed therefrom quickly and easily without the danger of cracking or breaking the same.

It will be understood that an electric light bulb of usual construction is adapted to be mounted in the socket 14 for purposes of illumination. 7

Many variations may be made in my device without departing from the spirit and intent of the invention.

I claim:

1. In a lighting fixture a spider adapted to be rigidly secured to the ceiling, a canopy rigidly secured to said spider, a threaded flange on the upper interior portion of said canopy, an outer cylindrical casing screwed into said flange, an inner cylindrical casing having exterior threading at its upper end adapted to screw into an interior threading on the flange of said outer casing at its upper end, a sliding cylinder mounted between said inner and outer casings by means of a spiral spring around said inner casing which is supported on an inturned flange around the lower edge of said sliding casing and at the upper end bears against the inturned flange of the outer casing, a spring clamping finger member rigidly secured to said inner casing at its lower edge, a spring pressure member secured to the base of said sliding member, an annular ring around said canopy connected through openings in said canopy to said sliding cylinder and a socket support rigidly secured to said spider within said canopy.

2. In a lighting fixture a spider adapted to be rigidly secured to the ceiling, a canopy rigidly secured to said spider, an inner and an outer cylinder mounted in said canopy, spring clamping means mounted in said canopy, spring pressure means mounted in said canopy under normal spring tension against said clamping means, comprising a slidable cylinder mounted under downward spring tension between said inner cylinder and said outer cylinder, and means for releasing said spring pressure means comprising an annular ring rigidly secured through openings in said canopy to said slidable cylinder, and a socket support rigidly secured Within said canopy.

8. In a lighting fixture a spider adapted to he rigidly secured to the ceiling, a canopy rigidly secured to said spider, spring clamping means mounted in said canopy, spring pressure means mounted insaid canopy under normal spring tension against said clamping means and means for releasing said spring pressure means comprising an annular ring mounted on the outside of said canopy and secured through openings in said canopy to said spring pressure means and a socket support rigidly secured to said spider Within said canopy.

In testimony whereof I aflix my signature.

EDWARD J. SCHROEDER. 

